nmWATI/Include/iPlot/iPlotCurveT/Commands/ZxCommandZoom.h

#pragma once

#include <QPointF>
#include <QUndoCommand>
#include "iPlotCurveT_global.h"

class ZxRenderItem;
class ZxSubAxisBase;

// 命令: 视图缩放，主要通过坐标轴范围来实现
class I_PLOTCURVE_T_EXPORT ZxCommandZoom : \
        public QUndoCommand
{
public:

    ZxCommandZoom(ZxSubAxisBase* pAxisX,
                  double fMaxX,
                  double fMinX,
                  ZxSubAxisBase* pAxisY = NULL,
                  double fMaxY = 0.f,
                  double fMinY = 0.f,
                  QUndoCommand* parent = 0);
    ~ZxCommandZoom();

    virtual void redo();
    virtual void undo();

private:

    ZxSubAxisBase* m_pAxisX;
    double m_fMaxX;
    double m_fMinX;
    double m_fMaxXOld;
    double m_fMinXOld;

    ZxSubAxisBase* m_pAxisY;
    double m_fMaxY;
    double m_fMinY;
    double m_fMaxYOld;
    double m_fMinYOld;
};